Find the perimeter of the rhombus below, given that a = 7 and b = 14. (round your answer to one decimal place, if necessary.)

Answers

Answer 1

If the value of a is 7, b is 14 in the rhombus then the perimeter of the rhombus is equal to 31.3 units.

Given that the value of a is 7,b is 14.

We are required to find the perimeter of the rhombus.

The values which are given to us are of the lengths of diagonals of rhombus.

Perimeter of the rhombus is equal to 4 times the side of the rhombus. So in order to find the perimeter of the rhombus we need the side of the rhombus not the diagonals.

When we draw the diagonals in the rhombus it forms four right angled triangle in which the Base is equal to 7/2 units and 7 is the perpendicular.

We have to use pythagoras theorem to find the hypotenuse which is the side of the rhombus.

Suppose base is BC , perpendicular is AB and hypotenuse is AC.

AC=[tex]\sqrt{7^{2} +7/2^{2} }[/tex]

=[tex]\sqrt{49+49/4}[/tex]

=[tex]\sqrt{245/4}[/tex]

=7.826

Perimeter of rhombus=4*side

=4*7.826

=31.304

After rounding off it will be 31.3 units.

Hence if the value of a is 7, b is 14 in the rhombus then the perimeter of the rhombus is equal to 31.3 units.

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Find The Perimeter Of The Rhombus Below, Given That A = 7 And B = 14. (round Your Answer To One Decimal

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$0.9 per pound

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Answer:

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Answer:

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Antwan drew the circle graph below
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day. His teacher said that the number of
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I think the answer is C, 160 degrees

Cement costs $76 per cubic yard. What is the cost of cement for a sidewalk that is 4 in. Thick, 3ft wide,and 40 ft. Long?

Answers

Answer:

112.46 yd³

Step-by-step explanation:

1 inch = 0.0278 yds

1 feet = 0.333 yd

Thickness = 4 inches = (4 * 0.0278) = 0.1112 yds

Width = 3 feets = (3 * 0.333) = 0.999 yds

Length = 40 feets = (40 * 0.333) = 13.32 yds

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Thickness * Width * Length

0.1112 * 0.999 * 13.32 = 1.479702816 yd³

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The length of a driveway is 18 yards what is it in feet?​

Answers

Answer:

Step-by-step explanation:

18yd(3ft/yd)=54ft

Answer:

Hello! :) have a good day!

54 feet

Factor ab + bc+ b² + ac.

A. (a + b)(b + c)

B. (a + c)(b + c)

C. b(a + b)(b + c)​

Answers

Answer:

A. (a + b)(b + c)

Step-by-step explanation:

b( a + b ) + bc + ac

b( a + b ) + c ( b + a )

= (a + b)(b + c)

hope it helps!

Answer:

A

Step-by-step explanation:

a(b+c)+bc+bb

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A high school sponsored a badminton tournament. After each round, one-half of the players were eliminated. If there were 64 players at the start of the tournament, which equation models the number of players left after round 3?
(1) y=64(1-.5)^3
(2) y=64(1+.5)^3
(3) y=64(1-.3)^.5
(4) y=64(1+.3)^.5

Answers

Answer:

(1) y = 64(1 - .5)^3

Step-by-step explanation:

(1) y = 64(1 - .5)^3

If you are eliminated half, then you are removing 50% or .5 of the teams. The number of teams is getting smaller, so eliminate the choices with "+". The exponent refers to the number of rounds.

This is an easy one to check: 64, 32, 16, 8. There are 8 teams after three rounds.

y=64(1 - .5)^3

y= 64(.5)^3

y= 64(.125)

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I NEED HELP ASAP!!!!!!!!

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Step-by-step explanation:

[tex]slope = \frac{rise}{run} = \frac{y2 - y1}{x2 - x1} \\ = \frac{ - 7 - 13}{5 - ( - 3)} \\ = \frac{ - 20}{8} \\ = \frac{ - 2 \times 10}{2 \times 4} \\ = \frac{ - 10}{4} \\ = \frac{ - 2 \times 5}{ 2 \times 2} = \frac{5}{2} [/tex]

(100 POINTS!!!) PLEASE HELP ME!!! FIRST TO ANSWER WILL GET BRAINLIEST! 14:40 LEFT!

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Answer:

the third one

Step-by-step explanation:

Answer:

that would be c

Step-by-step explanation:

You have 0.2 liter of an acid solution whose acid concentration is 16 moles per liter. You want to dilute the solution with water so that its acid concentration is only 12 moles per liter. Use the given model todetermine howmany liters of water you should add to the solution.

Answers

Answer: 0.067 litres of water

Step-by-step explanation:

The mode is:

Concentration of new solution = Moles of acid in original solution / (Volume of original solution + Volume of water added)

Assume volume of water added is w.

12 = 16 (0.2) / (0.2 + w)

(0.2 + w) * 12 = 3.2

0.2 + w = 3.2 / 12

w = (3.2 / 12) - 0.2

w = 0.067 litres of water

The amount of water you should add to the solution is 0.067 liters.

Given

You have 0.2 liters of an acid solution whose acid concentration is 16 moles per liter.

You want to dilute the solution with water so that its acid concentration is only 12 moles per liter.

The concentration of new solution;

You can also use the solution dilution calculator in order to calculate the concentration of ions in a diluted solution.

The amount of water you should add to the solution is given;

[tex]\rm Concentration \ of \ new \ solution =\dfrac{\text{Moles of acid in original solution } }{\text{Volume of original solution + Volume of water added}}\\\\12=\dfrac{16(0.2)}{0.2+w}\\\\12 (0.2+w)=16(0.2)\\\\2.4 +12w=3.2\\\\12w=3.2-2.4\\\\12w=0.8\\\\w=\dfrac{0.8}{12}\\\\w=0.067[/tex]

Hence, the amount of water you should add to the solution is 0.067 liters.

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1. Use the number line to help you decide which statement is true.


Answers

It’s the last one because 1/2 is way more then 2/5 so I think it would be 1/5<1/2 so the last one

Answer:

2/5 < 1/2

Step-by-step explanation:

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right triangle

Step-by-step explanation:

whenever there is a box in the corner it means its 90° and 90° is a right angle.

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-7a+11

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B I G  B R A I N :-))

A culture started with 2,000 bacteria. After 2
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Round your answer to the nearest whole
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P= Aekt

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Answer:

14,000

Step-by-step explanation:

if wrong i'm sorry

kayden mixed two solutions together which causes a chemical reaction and the solution becomes warm. which statement best describes what has happened

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B. energy has been created, where it did not exist before

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D. more energy has been created than has been destroyed

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According to law of conservation of energy, the statement  which best describes what has happened is that energy has been transformed from one form to another.

What is law of conservation of energy?

According to law of conservation of energy, it is evident that energy  is neither created nor destroyed rather it is restored at the end of a chemical reaction .

Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of mass is widely used in field of chemistry, fluid dynamics.

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Answer:

I believe the answer for the first one is -3, 3, number 3 would be 12

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Because if you are dilating by 1/3 then you will be dividing by 3, so if your point A coordinates are -9,9 then that divided by 3 is -3,3

Number 3 is 12 because your total of units from point D to C is 18 and it says to dilate by scale factor of 2/3 which again means to divide by 2/3 making your new length 12 units.

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A baseball field has four bases that form the shape of a quadrilateral. If someone invented a
new game similar to baseball that had four extra bases in the field, what type of polygon would
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Apentagon
Boctagon
Chexagon
Ddecagon

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letter b : octagon ??
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4 bases plus 4 more makes 8, an octagon has 8 sides.

Sarah’s parents purchased a refrigerator for $320. If sales tax is 7% of the cost, how much tax did Sarah’s parents pay for the refrigerator

Answers

Answer:

22.4

Step-by-step explanation:

7% of the cost is 22.4

Answer:

$22.40

Step-by-step explanation:

Let's convert the 7% sales tax into a decimal, which should be 0.07Multiply the sales tax (as a decimal) by the cost of the refrigerator ($320). You should get $22.40

Edit: Read something wrong, I fixed it, sorry.

I NEED HELP ASAP PLEASE​

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Answer:

1679616

Step-by-step explanation:

6*6

36*36*36*36

Answer:

[tex]6^{8}[/tex]

Step-by-step explanation:

[tex](6^{2})^{4} = 6^{2*4} = 6^{8}[/tex]

A square has an area of 64 square units. If its sides were only half as long, what would its area be?​

Answers

Answer:

16

Step-by-step explanation:

the sides now are 8x8

1/2 of that is 4x4 and 4x4=16

can someone help pls 10 points

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Answer:

A. 4x - 6 = -3x + 5

Step-by-step explanation:

you just have to take the first equation and substitute that in, in the second equation.

hope that helps. have a good day!

someone help me pls 10 points

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Answer:

x=-5

Step-by-step explanation:

solve the equation
[tex]6 - 2x = 3x[/tex]

Answers

x= 6/5

Work:
6-2x=3x
-2x=3x-6
-5x=-6
x=6/5

That’s all simplified step by step, hope this helped

is there anyone who can help with this????

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Answer:

C equals 48

Step-by-step explanation:

You add the two angles you have and take that answer and subtract it from 180 and that is the missing angle measure

Find the median of the data set represented in the following stem-and-leaf plot.



62
63
64
67

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The median of the data set is 63

Answer:

67

Step-by-step explanation:

cos4A+sin4A-2cos2Asin2A=(2cos2A-1)2 prove it.​

Answers

cos4A-sin4A=2cos2A-1

proved below.

Step-by-step explanation:

Given:

cos^4A-sin^4A=2cos^2A-1

LHS=cos^4A-sin^4A

=[cos^2A]^2-[sin^2A]^2

=[cos^2A+sin^2A][cos^2A-sin^2A]

=[1][cos^2A-(1-cos^2A)] [ cos^2A+sin^2A=1]

=[cos^2A-1+cos^2A]

=2cos^2A-1

=RHS.

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